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When we're building PIC we don't need the large code model. Try small.

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Only mangle darwin to linux when PIC is disabled (the reason we do it is to avoid LLVM forcably enabling PIC for us).
This commit is contained in:
Nick Lewycky
2020-08-07 18:13:56 -07:00
parent 8daeff8bc8
commit 45dcee1282
1 changed files with 19 additions and 13 deletions
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32
lib/compiler-llvm/src/config.rs
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@@ -95,7 +95,11 @@ impl LLVM {
}
fn code_model(&self) -> CodeModel {
CodeModel::Large
if self.is_pic {
CodeModel::Small
} else {
CodeModel::Large
}
}
fn target_triple(&self, target: &Target) -> TargetTriple {
@@ -106,18 +110,20 @@ impl LLVM {
} else {
target_lexicon::BinaryFormat::Elf
};
let operating_system =
if target.triple().operating_system == wasmer_compiler::OperatingSystem::Darwin {
// LLVM detects static relocation + darwin + 64-bit and
// force-enables PIC because MachO doesn't support that
// combination. They don't check whether they're targeting
// MachO, they check whether the OS is set to Darwin.
//
// Since both linux and darwin use SysV ABI, this should work.
wasmer_compiler::OperatingSystem::Linux
} else {
target.triple().operating_system
};
let operating_system = if target.triple().operating_system
== wasmer_compiler::OperatingSystem::Darwin
&& !self.is_pic
{
// LLVM detects static relocation + darwin + 64-bit and
// force-enables PIC because MachO doesn't support that
// combination. They don't check whether they're targeting
// MachO, they check whether the OS is set to Darwin.
//
// Since both linux and darwin use SysV ABI, this should work.
wasmer_compiler::OperatingSystem::Linux
} else {
target.triple().operating_system
};
let triple = Triple {
architecture: target.triple().architecture,
vendor: target.triple().vendor.clone(),